Complete service diagnostics manual with Electrical Wiring Diagrams for John Deere 4WD Loaders 744J, 824J, with all the shop information to maintain, diagnose, and service like professional mechanics.

John Deere 4WD Loaders 744J, 824J workshop Operation and Test Service manual includes:
* Numbered table of contents easy to use so that you can find the information you need fast.
* Detailed sub-steps expand on repair procedure information
* Numbered instructions guide you through every repair procedure step by step.
* Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use.
* Notes, cautions and warnings throughout each chapter pinpoint critical information.
* Bold figure number help you quickly match illustrations with instructions.
* Detailed illustrations, drawings and photos guide you through every procedure.
* Enlarged inset helps you identify and examine parts in detail.

TM2083 - John Deere 4WD Loaders 744J, 824J Technical Manual (Operation and Tes).PDF
TM2083 - John Deere 4WD Loaders 744J, 824J Technical Manual (Operation and Tes).EPUB

Total Pages: 1,241 pages
File Format: PDF/EPUB/MOBI/AZW (PC/Mac/Android/Kindle/iPhone/iPad; bookmarked, ToC, Searchable, Printable)
Language: English

MAIN SECTIONS
 Foreword
   Technical Information Feedback Form
   General Information
      Safety Information
   Operational Checkout Procedure
      Operational Checkout Procedure
   Engine
      Theory of Operation
      Diagnostic Information
      Tests
   Electrical System-744J And 824J (S.N. -590067)
      System Information
      System Diagrams
      Sub-System Diagnostics
      References
   Electrical System-744J And 824J (S.N. 590068-600915)
      System Information
      System Diagrams
      Sub-System Diagnostics
      References
   Electrical System-744J And 824J (S.N. 600916- )
      System Information
      System Diagrams
      Sub-System Diagnostics
      References
   Power Train
      Theory of Operation
      Diagnostic Information
      Adjustments
      Tests
   Hydraulic System
      Theory of Operation
      Diagnostic Information
      Adjustments
      Test
   Heating And A/C
      Theory Of Operation
      Diagnostic Information
      Tests

tm2083 - 744J and 824J Loader

Table of Contents

Foreword

Technical Information Feedback Form

Section 9000: General Information

Group 01: Safety Information

Recognize Safety Information

Follow Safety Instructions

Operate Only If Qualified

Wear Protective Equipment

Avoid Unauthorized Machine Modifications

Add Cab Guarding For Special Uses

Inspect Machine

Stay Clear of Moving Parts

Avoid High-Pressure Oils

Beware of Exhaust Fumes

Prevent Fires

Prevent Battery Explosions

Handle Chemical Products Safely

Dispose of Waste Properly

Prepare for Emergencies

Use Steps and Handholds Correctly

Start Only From Operator's Seat

Use and Maintain Seat Belt

Prevent Unintended Machine Movement

Avoid Work Site Hazards

Use Special Care When Operating Loader

Keep Riders Off Machine

Avoid Backover Accidents

Avoid Machine Tip Over

Operating on Slopes

Operating or Traveling On Public Roads

Inspect and Maintain ROPS

Add and Operate Attachments Safely

Park And Prepare For Service Safely

Service Cooling System Safely

Remove Paint Before Welding or Heating

Make Welding Repairs Safely

Drive Metal Pins Safely

Section 9005: Operational Checkout Procedure

Group 10: Operational Checkout Procedure

Complete Machine Operational Checkout

Section 9010: Engine

Group 05: Theory of Operation

POWERTECH POWERTECH is a trademark of Deere & Company 12.5L (6125) John Deere Engines

Electronic Fuel Systems

Engine Air Heater Circuit Theory of Operation (S.N. —590067)

Engine Air Heater Circuit Theory of Operation (S.N. 590068— )

Group 15: Diagnostic Information

Diagnose Engine Malfunctions

Group 25: Tests

Engine Speed Test

Air Filter Restriction Indicator Switch Test

Engine Power Test Using Engine Pulldown

Air Intake System Leakage Test

Engine Power Test Using Turbocharger Boost Pressure

Fuel Line Leakage Test

Section 9015A: Electrical System—744J And 824J (S.N. —590067)

Group 05: System Information

Electrical Diagram Information (S.N. —590067)

Group 10: System Diagrams

Fuse and Relay Specifications (S.N. —590067)

System Functional Schematic Section Legend (S.N. —590067)

Functional Schematic And Component Location Legend (S.N. —590067)

System Functional Schematic (S.N. —590067)

Loader Frame Harness (W2) Component Location (S.N. —590067)

Load Center Harness (W3) Component Location (S.N. —590067)

Front Console Harness (W4) Component Location (S.N. —590067)

Engine Frame Harness (W5) Component Location (S.N. —590067)

Engine Harness (W6) Component Location (S.N. —590067)

Engine Air Heater Harness (W7) Component Location (S.N. —590067)

Return-to-Dig Harness (W8) Component Location (S.N. —590067)

Ride Control Harness (W9) Component Location (S.N. —590067)

Transmission Harness (W10) Component Location (S.N. —590067)

Rear Frame Harness (W13) Component Location (S.N. —590067)

Spin Control Harness (W14) Component Location (S.N. —590067)

License Plate Light Harness (W15) Component Location (S.N. —590067)

Pin Disconnect Harness (W16) Component Location (S.N. —590067)

Secondary Steering Switch Harness (W17) Component Location (S.N. —590067)

Cab Work Lights Harness (W19) Component Location (S.N. —590067)

Blower And A/C Harness (W20) Component Location (S.N. —590067)

Converter and Power Plug Harness (W21) Component Location (S.N. —590067)

Secondary Steering Pump Motor Harness (W23) Component Location (S.N. —590067)

Battery (Cables) Harness (W24) Component Location (S.N. —590067)

Engine Valve Cover Harness (W33) Component Location (S.N. —590067)

Radio Harness (W34) Component Location (S.N. —590067)

Electric Air Adjust Seat Harness (W36) Component Location (S.N. —590067)

CAN Terminator Harness (W37) Component Location (S.N. —590067)

Group 15: Sub-System Diagnostics

Start Circuit Theory of Operation (S.N. —590067)

Ride Control Circuit Theory Of Operation (S.N. —590067)

Monitor Display Unit Circuit Theory Of Operation (S.N. —590067)

Monitor Display Unit—Accessing Menus (S.N. —590067)

Monitor Display Unit—Normal Display Menu (S.N. —590067)

Monitor Display Unit—Accessory Menu (S.N. —590067)

Monitor Display Unit—Diagnostics Menu (S.N. —590067)

Monitor Display Unit—Service Menu (S.N. —590067)

Chassis Control Unit Circuit Theory Of Operation (S.N. —590067)

Spin Control Circuit Theory Of Operation (824J) (S.N. —590067)

Transmission Control Unit Circuit Theory Of Operation (S.N. —590067)

Transmission Modes Of Operation—Manual And Automatic (S.N. —590067)

Transmission Functions Set At Monitor Display Unit (S.N. —590067)

Transmission Shift Ranges In Automatic Mode (S.N. —590067)

Transmission Control Unit Response To Malfunctions (S.N. —590067)

Park Brake Circuit Theory Of Operation (S.N. —590067)

Pilot Enable And Boom Down Circuit Theory Of Operation (S.N. —590067)

Return-to-Carry, Boom Height Kickout And Return-to-Dig Circuit Theory Of Operation (S.N. —590067)

Secondary Steering Circuit Theory Of Operation (S.N. —590067)

Engine Control Unit Theory of Operation (S.N. —590067)

Group 20: References

Diagnostic Trouble Codes Quick Reference List (S.N. —590067)

Transmission Diagnostic Trouble Codes (S.N. —590067)

Transmission Diagnostic Trouble Codes (S.N. —590067) (Continued)

Engine Related Diagnostic Trouble Codes (S.N. —590067)

Engine Diagnostic Trouble Codes (S.N. —590067)

Steering and Brake Diagnostic Trouble Codes (S.N. —590067)

Electrical System Diagnostic Trouble Codes (S.N. —590067)

Hydraulic System Diagnostic Trouble Codes (S.N. —590067)

CAN Circuit Testing

Check Battery Electrolyte Level and Terminals (S.N. —590067)

Procedure for Testing Batteries (S.N. —590067)

Electrical Component Specifications (S.N. —590067)

Transmission Control Valve Solenoid Check (S.N. —590067)

Clutch Cut-Off Sensor Adjustment (S.N. —590067)

Throttle Position Sensor Adjustment (S.N. —590067)

Boom Height Kickout Adjustment (S.N. —590067)

Return-to-Carry Kickout Adjustment (S.N. —590067)

Return-to-Dig Adjustment (S.N. —590067)

Sensor Circuitry Check (S.N. —590067)

Diagnostic Trouble Codes—After Machine Repair (S.N. —590067)

Change Back-Up alarm Volume (S.N. —590067)

Remove and Install Pressure Switches (S.N. —590067)

Replace METRI-PACK® Connectors (S.N. —590067)

Install METRI-PACK® Contact (S.N. —590067)

Replace DEUTSCH® Connectors (S.N. —590067)

Install DEUTSCH® Contact (S.N. —590067)

Replace WEATHER PACK® Connector (S.N. —590067)

Install WEATHER PACK® Contact (S.N. —590067)

Replace CINCH™ Connectors (S.N. —590067)

Install CINCH™ Contact (S.N. —590067)

Remove Connector Body from Blade Terminals

Remove Blade Terminals From Fuse Block (S.N. —590067)

Transmission Controller Remove and Install (S.N. —590067)

Engine Controller Remove and Install (S.N. —590067)

Chassis Control Unit Remove and Install (S.N. —590067)

Monitor Display Unit Remove and Install (S.N. —590067)

Reprogram Monitor Display Unit (S.N. —590067)

Section 9015B: Electrical System—744J And 824J (S.N. 590068—600915)

Group 05: System Information

Electrical Diagram Information (S.N. 590068— )

Group 10: System Diagrams

Fuse and Relay Specifications (S.N. 590068—600915)

System Functional Schematic, Wiring Diagram and Component Location Legend (S.N. 590068—600915)

System Functional Schematic and Section Legend (S.N. 590068—600915)

Loader Frame Harness (W2) Component Location (S.N. 590068—600915)

Loader Frame Harness (W2) Wiring Diagram (S.N. 590068—600915)

Load Center Harness (W3) Component Location (S.N. 590068—600915)

Load Center Harness (W3) Wiring Diagram (S.N. 590068—600915)

Front Console Harness (W4) Component Location (S.N. 590068— )

Front Console Harness (W4) Wiring Diagram (S.N. 590068— )

Engine Frame Harness (W5) Component Location (S.N. 590068— )

Engine Frame Harness (W5) Wiring Diagram (S.N. 590068— )

Engine Harness (W6) Component Location (S.N. 590068— )

Engine Harness (W6) Wiring Diagram (S.N. 590068—600915)

Engine Air Heater Harness (W7) Component Location (S.N. 590068— )

Engine Air Heater Harness (W7) Wiring Diagram (S.N. 590068— )

Ride Control Harness (W9) Component Location (S.N. 590068—600915)

Ride Control Harness (W9) Wiring Diagram (S.N. 590068—600915)

Transmission Harness (W10) Component Location (S.N. 590068— )

Transmission Harness (W10) Wiring Diagram (S.N. 590068— )

Rear Frame Harness (W13) Component Location (S.N. 590068— )

Rear Frame Harness (W13) Wiring Diagram (S.N. 590068—600915)

Cab Roof Harness (W19) Component Location (S.N. 590068—600915)

Cab Roof Harness (W19) Wiring Diagram (S.N. 590068—600915)

Blower and A/C (W20) Component Location (S.N. 590068— )

Blower and A/C (W20) Wiring Diagram (S.N. 590068— )

Radio Harness (W34) Component Location (S.N. 590068— )

Radio Harness (W34) Wiring Diagram (S.N. 590068— )

Group 15: Sub-System Diagnostics

Starting and Charging Circuit Theory of Operation (S.N. 590068— )

Controller Area Network (CAN) Theory of Operation (S.N. 590068— )

Engine Control Unit (ECU) Circuit Theory of Operation (S.N. 590068— )

Flex Load Controller (FLC) Circuit Theory of Operation (S.N. 590068— )

Transmission Control Unit (TCU) Circuit Theory of Operation (S.N. 590068— )

CAN Monitor Unit (CMU) Circuit Theory of Operation (S.N. 590068— )

Group 20: References

Diagnostic Trouble Codes Quick Reference List (S.N. 590068—600915)

CAN Monitor Unit (CMU) Diagnostic Trouble Codes (S.N. 590068—600915)

Flex Load Controller (FLC) Diagnostic Trouble Codes (S.N. 590068—600915)

Sealed Switch Module (SSM) Diagnostic Trouble Codes (S.N. 590068—600915)

Transmission Control Unit (TCU) Diagnostic Trouble Codes (S.N. 590068—600915)

Engine Control Unit (ECU) Diagnostic Trouble Codes (S.N. 590068—600915)

Flex Load Controller (FLC) Fault Exceptions (S.N. 590068— )

CAN Circuit Testing

Check Battery Electrolyte Level and Terminals (S.N. 590068— )

Procedure For Testing Batteries (S.N. 590068— )

Electrical Component Specifications (S.N. 590068— )

Transmission Control Valve Solenoid Check (S.N. 590068— )

Clutch Cut-Off Sensor Check and Adjustment (S.N. 590068— )

Boom Height Kickout/Return-to-Carry Adjustment (S.N. 590068— )

Return-to-Dig Adjustment (S.N. 590068— )

Sensor Circuitry Check (S.N. 590068— )

Diagnostic Trouble Codes—After Machine Repair (S.N. 590068— )

Change Back-Up Alarm Volume (S.N. 590068— )

Remove and Install Pressure Switches (S.N. 590068— )

Replace METRI-PACK® Connectors (S.N. 590068— )

Install METRI-PACK® Contact (S.N. 590068— )

Replace DEUTSCH® Connectors (S.N. 590068— )

Install DEUTSCH® Contact (S.N. 590068— )

Replace WEATHER PACK® Connector (S.N. 590068— )

Install WEATHER PACK® Contact (S.N. 590068— )

Replace CINCH™ Connectors (S.N. 590068— )

Install CINCH™ Contact (S.N. 590068— )

Repair 32 and 48 Way CINCH™ Connectors (S.N. 590068— )

Remove Connector Body from Blade Terminals (S.N. 590068— )

Engine Control Unit (ECU) Remove and Install (S.N. 590068— )

Flex Load Controller (FLC) Remove and Install (S.N. 590068— )

Transmission Control Unit (TCU) Remove and Install (S.N. 590068— )

Sealed Switch Module (SSM) Remove and Install (S.N. 590068— )

CAN Monitor Unit (CMU) Remove and Install (S.N. 590068— )

Reprogram CAN Monitor Unit (CMU) S.N. 590068—)

Electronic Controller Reconfiguration (S.N. 590068 —)

Section 9015C: Electrical System—744J And 824J (S.N. 600916— )

Group 05: System Information

Electrical Diagram Information (S.N. —165691)

Group 10: System Diagrams

Fuse and Relay Specifications (S.N. 600916— )

System Functional Schematic, Wiring Diagram and Component Location Master Legend (S.N. 600916— )

System Functional Schematic (S.N. 600916— )

JDLink™ System Functional Schematic—MIG/GTT

JDLink™ System Functional Schematic—MTG/SAT

Loader Frame Harness (W2) Component Location (S.N. 600916— )

Loader Frame Harness (W2) Wiring Diagram (S.N. 600916— )

Load Center Harness (W3) Component Location (S.N. 600916— )

Load Center Harness (W3) Wiring Diagram (S.N. 600916— )

Front Console Harness (W4) Component Location (S.N. 590068— )

Front Console Harness (W4) Wiring Diagram (S.N. 590068— )

Engine Frame Harness (W5) Component Location (S.N. 590068— )

Engine Frame Harness (W5) Wiring Diagram (S.N. 590068— )

Engine Harness (W6) Component Location (S.N. 590068— )

Engine Harness (W6) Wiring Diagram (S.N. 600916— )

Engine Air Heater Harness (W7) Component Location (S.N. 590068— )

Engine Air Heater Harness (W7) Wiring Diagram (S.N. 590068— )

Joystick Steering Harness (W8) Component Location

Joystick Steering Harness (W8) Wiring Diagram

Transmission Harness (W10) Component Location (S.N. 590068— )

Transmission Harness (W10) Wiring Diagram (S.N. 590068— )

Rear Frame Harness (W13) Component Location (S.N. 590068— )

Rear Frame Harness (W13) Wiring Diagram (S.N. 600916— )

Cab Roof Harness (W19) Component Location

Cab Roof Harness (W19) Wiring Diagram

Blower and A/C (W20) Component Location (S.N. 590068— )

Blower and A/C (W20) Wiring Diagram (S.N. 590068— )

JDLink™ System Harnesses Component Location—MIG/GTT

JDLink™ System Harnesses Component Location—MTG/SAT

JDLink™ System Wiring Diagrams—MIG/GTT

JDLink™ System Wiring Diagrams—MTG/SAT

Radio Harness (W34) Component Location (S.N. 590068— )

Radio Harness (W34) Wiring Diagram (S.N. 590068— )

Group 15: Sub-System Diagnostics

Starting and Charging Circuit Theory of Operation (S.N. 590068— )

Controller Area Network (CAN) Theory of Operation (S.N. 590068— )

Engine Control Unit (ECU) Circuit Theory of Operation (S.N. 590068— )

Flex Load Controller (FLC) Circuit Theory of Operation (S.N. 590068— )

Transmission Control Unit (TCU) Circuit Theory of Operation (S.N. 590068— )

CAN Monitor Unit (CMU) Circuit Theory of Operation (S.N. 590068— )

Group 20: References

Diagnostic Trouble Code Quick Reference (S.N. 600916— )

CAN Monitor Unit (CMU) Diagnostic Trouble Codes (S.N. 600916— )

Flex Load Controller (FLC) Diagnostic Trouble Codes (S.N. 600916— )

Sealed Switch Module (SSM) Diagnostic Trouble Codes (S.N. 600916— )

Transmission Control Unit (TCU) Diagnostic Trouble Codes (S.N. 600916— )

Engine Control Unit (ECU) Diagnostic Trouble Codes (S.N. 600916— )

Flex Load Controller (FLC) Fault Exceptions (S.N. 590068— )

JDLink™ System Identification

JDLink™ Connection Procedure

CAN Circuit Testing

Check Battery Electrolyte Level and Terminals (S.N. 590068— )

Procedure For Testing Batteries (S.N. 590068— )

Electrical Component Specifications (S.N. 590068— )

Transmission Control Valve Solenoid Check (S.N. 590068— )

Clutch Cut-Off Sensor Check and Adjustment (S.N. 590068— )

Boom Height Kickout/Return-to-Carry Adjustment (S.N. 590068— )

Return-to-Dig Adjustment (S.N. 590068— )

Sensor Circuitry Check (S.N. 590068— )

Diagnostic Trouble Codes—After Machine Repair (S.N. 590068— )

Change Back-Up Alarm Volume (S.N. 590068— )

Remove and Install Pressure Switches (S.N. 590068— )

Replace METRI-PACK® Connectors (S.N. 590068— )

Install METRI-PACK® Contact (S.N. 590068— )

Replace DEUTSCH® Connectors (S.N. 590068— )

Install DEUTSCH® Contact (S.N. 590068— )

Replace WEATHER PACK® Connector (S.N. 590068— )

Install WEATHER PACK® Contact (S.N. 590068— )

Replace CINCH™ Connectors (S.N. 590068— )

Install CINCH™ Contact (S.N. 590068— )

Repair 32 and 48 Way CINCH™ Connectors (S.N. 590068— )

Remove Connector Body from Blade Terminals (S.N. 590068— )

Engine Control Unit (ECU) Remove and Install (S.N. 590068— )

Flex Load Controller (FLC) Remove and Install (S.N. 590068— )

Transmission Control Unit (TCU) Remove and Install (S.N. 590068— )

Sealed Switch Module (SSM) Remove and Install (S.N. 590068— )

CAN Monitor Unit (CMU) Remove and Install (S.N. 590068— )

Reprogram CAN Monitor Unit (CMU) S.N. 590068—)

Electronic Controller Reconfiguration (S.N. 590068 —)

Section 9020: Power Train

Group 05: Theory of Operation

TeamMateII Axles

Transmission Clutch Engagement and Solenoids Activated

Transmission Operation

Torque Converter Operation

Transmission Operation—First Gear Forward

Clutch Pack Operation

Transmission Hydraulic System

Transmission Control Valve Components

Transmission Clutch Modulation

Thermal Bypass Valve Operation

Hydraulic Differential Lock Air Boost System

Park Brake Operation

Group 15: Diagnostic Information

Power Train Component Location

Transmission System Schematic—First Forward

Diagnose Transmission System Malfunctions

Diagnose Service Brake Malfunctions

Diagnose Differential and Axle Malfunctions

Diagnose Drive Line Malfunctions

Diagnose Park Brake Malfunctions

Group 20: Adjustments

External Service Brake Inspection

Hydraulic Brake Bleeding Procedure

Brake Pump and Differential Lock System Oil Clean-Up Procedure Using Portable Filter Caddy

Transmission Speed Sensor Adjustment

Transmission Control Unit (TCU)—Electronic Clutch Adjustment (S.N. —590067)

Transmission Control Unit (TCU)—Electronic Clutch Calibration (S.N. 590068— )

Group 25: Tests

Transmission Oil Warm-Up Procedure

Driveline Bearing—Park Brake Pressure Test

Driveline Bearing—Park Brake Drag Test

Transmission Pump Flow Test

Transmission System Pressure Test

Transmission Clutch Pressure Test

Transmission Element Leakage Test

Lube Pressure Test

Differential Lock Pressure Test

Differential Lock Leakage Test

Converter—In Pressure Test

Converter—Out Pressure Test

Converter Relief Pressure Test

Converter—Out Flow Test

Torque Converter Stall Speed Test

Transmission Oil Cooler Thermal Bypass Valve Temperature Test

Transmission Oil Cooler Thermal Bypass Valve Pressure Test

Transmission Oil Cooler Restriction Test

Section 9025: Hydraulic System

Group 05: Theory of Operation

Main Hydraulic Pump Operation

Steering System Components

Steering Circuit Operation—Right Turn

Priority Valve Operation (Neutral)

Priority Valve (Mid-Turn)

Priority Valve (Steering Cylinder Bottomed)

Steering Valve Operation

Secondary Steering System Operation

Secondary Steering Inlet Manifold Operation

Hydraulic System Components

Loader Hydraulic System

Pump Pressure Compensator

Pump Control At Neutral

Pump Control Function Metering

Pump Control—Full Flow

Pump Control—Function Bottomed

Pressure Reducing Valve—Boom Raise Operation (S.N. —590067)

Pressure Reducing Valve—Boom Down—Engine Running Operation (S.N. —590067)

Pressure Reducing Valve—Boom Down—Engine Off Operation (S.N. —590067)

Pressure Reducing Valve Operation (S.N. 590068— )

Pilot Control Lever Operation—Boom Float (S.N. —590067)

Pilot Control Lever Operation—Bucket Rollback (S.N. —590067)

Pilot Control Lever Operation (S.N. 590068— )

Pilot Orifice Check Valve For Control Valve Sections

Loader Control Valve Operation

Boom Section Operation

Anti-Cavitation Valve Operation

Loader Control Valve—Load Sense Circuit

Return Filter Operation

Ride Control Operation—On Position—Bucket Dump (S.N. —590067)

Ride Control Operation—Off Position (S.N. —590067)

Ride Control Operation (S.N. 590068— )

Service Brake Hydraulic System

Service Brake Accumulator

Service Brake Valve

Pin and Axle Disconnect Operation

Group 15: Diagnostic Information

Hydraulic System Component Locations

Hydraulic System Schematics

Diagnose Hydraulic System Malfunctions

Group 20: Adjustments

Hydraulic Oil Clean-Up Procedure Using Portable Filter Caddy

Return-To-Dig Adjustment

Return-To-Carry and Boom Height Kickout Adjustment

Pilot Controller Adjustment—Two Lever Pilot

Ride Control Accumulator Discharge Procedure—If Equipped

Ride Control Accumulator Gas Charge Procedure—If Equipped

Ride Control Accumulator Draining Procedure

Auxiliary Valve Section—Stroke Adjustment

Group 25: Test

Hydraulic Oil Warm-Up Procedure

JT02156A Digital Pressure and Temperature Analyzer Kit Installation

Steering / Loader Pump And Loader Hydraulic Pump Control Assembly Adjustment Test

Steering / Loader Hydraulic Pump Flow Test

Loader Hydraulic Pump Flow Test

Loader Relief And Circuit Relief Valve Pressure Test

Loader Cylinder Drift Test

Boom And Bucket Cylinder Leakage Test

Hydraulic Oil Cooler Restriction Test

Steering Valve Leakage Test

Steering Valve Drift Test

Priority Valve Leakage and Steering System Pressure Test

Priority Valve Check Valve Leakage Test

Priority Valve LS Port Flow Test

Secondary Steering Pump Relief Valve Pressure Test

Secondary Steering Manifold Primary Check Valve Leakage Test

Secondary Steering Manifold Secondary Check Valve Leakage Test

Pilot Control Valve Pressure Test (S.N. —590067)

Pilot Control Valve Pressure Test—Single Lever (S.N. 590068— )

Pilot Control Valve Pressure Test—Two Lever

Pressure Reducing Valve Pressure Test

Cycle Time Test

Brake Accumulator Precharge Test

Boom Down Accumulator Precharge Test (S.N. 590068— )

Service Brake Valve Pressure Test

Service Brake Valve Leakage Test

Service Brake Accumulator Inlet Check Valve Leakage Test

Axle and Pin Disconnect Pressure Test

Hydraulic Oil Filter Inspection Procedure

Section 9031: Heating And A/C

Group 05: Theory Of Operation

Air Conditioning System Cycle Of Operation

Group 15: Diagnostic Information

Diagnose Air Conditioning System Malfunctions

Diagnose Heater System Malfunctions

Group 25: Tests

Air Conditioning System Fittings Reference Chart

Proper Refrigerant Handling

R134a Refrigerant Cautions

Refrigerant Hoses and Tubing Inspection

R134a Air Conditioning System Test

Operating Pressure Diagnostic Chart

Low Pressure Switch Test (S.N. —590067)

High Pressure Switch Test (S.N. —590067)

A/C Binary Pressure Switch Test (S.N. 590068— )

Freeze Control Switch

Leak Testing

John Deere 4WD Loaders 744J, 824J Operation and Test Service Manual (TM2083)